Based around cheap and readily-available electrical components, they could soon be made commericially available, with bYOB retailing for around the same as an ordinary leather handbag.

CNN: The bag that watches your wallet

The 18-year-old was walking along Leather Lane, Haverhill, on Monday morning when a man tugged on her handbag and pushed her against a fence.

BBC: Haverhill woman attacked with glass shard and bleach